Then GO FOR IT!!
Fuzzies are the neatest little fish. They are a big bioload but you won't have many of the issues faced with peeps who have to "feed the tank" to feed their fish. Where they eat from a stick without food landing anywhere else, algae issues are a minimum. But I suspect your frag tank will have good lights and a little higher heat, which could potentially be the match for the fuel. But I don't have any issues with nuisance algae in my tanks that aren't "tank fed".